Placopyrenium gorzegnoense (Servít) ined. (provisionally placed here, ICN Art. 36.1b)

Syn.: Dermatocarpon gorzegnoense Servít
Lichenised. Poorly known taxon.
Substrate: calciferous rocks
Altitudinal distribution: submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus)
Note: a species with a spreading, verrucose-areolate to squamulose thallus, the squamules (to 1 mm in diam.) subdivided into whitish pruinose verruculae (to 0.2 mm in diam.), with a thick, brown, paraplectenchymatic basal layer, ascomata 1-3 per squamule only slightly protruding, involucrellum lacking, ascospores oblong to ellipsoid (to c. 20 µm long); on a calcareous rock, only known from the type locality in the Western Alps (Italy).
Italy: Piemonte;